.cen_btn {
  position: absolute;
  width: 50%;
  height: 70px;
  bottom: 30px;
  background: url("../../assets/image/navbar.png") no-repeat 0 0/600px 70px;
  padding-left: 10%;
  margin-left: -5%;
}

.cen_btn .itemBox {
  float: left;
}

.cen_btn .itemBox .imgs {
  width: 70px;
  height: 70px;
}
